Idaho Falls Regional Airport (IATA: IDA, ICAO: KIDA, FAA LID: IDA) is two miles north-northwest of downtown Idaho Falls, Idaho, United States. It is locally known as Fanning Field. It is the second-busiest airport in Idaho after Boise Airport.

The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service facility. Federal Aviation Administration records say the airport had 148,584 passenger boardings (enplanements) in calendar year 2008, 138,957 in 2009 and 144,365 in 2010. In 2024, 610,641 passengers boarded flights at IDA, which was an 11.9% increase from 2023. This was also a 73.2% increase from 2019.